1223305133 has 2 divisors, whose sum is σ = 1223305134. Its totient is φ = 1223305132.

The previous prime is 1223305129. The next prime is 1223305141. The reversal of 1223305133 is 3315033221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1128086569 + 95218564 = 33587^2 + 9758^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223305133 - 2² = 1223305129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1223305099 and 1223305108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223305103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611652566 + 611652567.

It is an arithmetic number, because the mean of its divisors is an integer number (611652567).

Almost surely, 2^1223305133 is an apocalyptic number.

It is an amenable number.

1223305133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223305133 is an equidigital number, since it uses as much as digits as its factorization.

1223305133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 1223305133 is about 34975.7792336354. The cubic root of 1223305133 is about 1069.4937871029.

Adding to 1223305133 its reverse (3315033221), we get a palindrome (4538338354).

The spelling of 1223305133 in words is "one billion, two hundred twenty-three million, three hundred five thousand, one hundred thirty-three".